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AM. PHOTO-LITRO. CD. NX (OSBURNES PROCESS.)

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TO .ALL WHOM IT MAY CONCERN Be it known that'I, HERRMAN SARONI, of thecity and county of Baltimore, and State of Maryland, have inventedcertain new and useful improvements in Apparatus forv Generating Steam;of which the following is a full, clear, and exact description,reference being had to the annexed drawings, making a part ofthis`speeiiication, in whichl Figure l represents a central verticalsection through myapparatus.

.Figure 2 represents a central vertical section through the water-drum.

Figure 3 represents a top view of the Water-drum; and

Figure 4 represents a top view of a, series of drums, arranged for usewith boilersof large capacity.

It is the object of myinvention to generate steam rapidly withI a burneror burners adapted to the use of mineral oils or other liquidhydro-carbons as fuel.; to which end my improvement consists-.

First, in a shallow, water-drum or heater, interposed between theIburner and thebo'iler; second,in so combining the boiler and the tubularheater or water-drum as that a space shall be left between the 'two toform a combustion chamber; third, in placing tubes within the water-drumor heater, to augment the heating surface exposed to the direct actionof the llame generated by the burner.

v.In illustrating my invention by this example, I have shownit appliedto a vertical cylindrical tubular boiler, but it is obviouslyapplicable, also, to Hue or tubular boilers of any shape adapted to ahorizontal position.. The boiler A is cylindrical, and contains a numberof vertical tubes, a a it is provided with av spirally-coiled steampipe, B, communicating with the steam chamber, and furnished with asafety-valve, b. The boiler has steam and water-gauge cocks, 1, 2,' and3, suitably placed to keep the water at a proper level; The shell of theboiler terminatesin a ilared iange,`C, to enable it to be so connectedwith a tubular heater, D, as to'leave a clear space between the bottomof the boiler land the top of the tubular heater D, on which it rests,the heater D being itself supported on a cylindrical i'urn:a,cecliamber,E, for'the burners, or on a properly constructed furnace wall. Pipes dand al connect the boiler A with the tubular heater, and the .pipe d isconnected with the pump by a pipe, e, through which the required supplyof water is obtained," and the iiow of water from the pump to theheater, and between the heater and. the boiler, is 'under the controlofaf globe-valve'` or three-way cock, F. The ltubular heater D is ashallow drum, of the diameter of the bottom of the boiler, having shorttubes, f, passing vertically through it, to permit the iiame from theburners toenterq and pass into the space between the heater l)l and theboiler A,'this space constituting a c'ombustionchamber, from -which theheat passes e` through the open tubes in the boiler to a suitably placedchimney'.l The burners g rise from aproper supply-pipe, G, fed from anyproperly placed reservoir, and the conductors attached to the burner maytouch the heater-drum, or be placed so near to it as to conduct thedesired amount of heat to vaporize the 'oil' in the supply-pipe Gr.Instead of the drum described, I use, for, convenience in di'erentsituations, a water-drum H, which consists of a circular shallow drum,with .tubular openings L, and anentrance opening z', and exit opening k,the tubular openings permitting the passage of the flame from theburners, and the openingsz' and permit the .iiow of a current of waterthrough the drum. 'lo adapt my tubular heater to boilers of largesurface,`I arrange water-drums H, iig. 4, in any numbers and s izerequired for the determinednuniber of burners to be used, in rowsbetween pipes L and L', connecting these water-pipes with'the drums an'dwith each other by connecting pipes l, the water from the pump enteringthe pipevL at m and fm', and passing into, the boiler after being heatedfrom the pipe L, at n and 'n'.

I haveonlydescribed a cylindrical heater-drum, but of course the form isindifferent, and my inventionf will be perfectly effective, whatever theshape of the drums. The operatioh is as follows: The boiler being filledto the proper height, the steam pipe being connected to the engine, the-water pipe to'the pump, and the oil pipe to the reservoir,a fire isplaced beneath the burners, and held there until vaporization takesplace, and the vapor passing from the burners is ignited,`and when theoil pipe becomes suiciently heatedfthe vaporization continues, and thestarting fire is withdrawn from beneath the burners; the iame'from` theburners passes over the under surface of the heating drums, and ascendsthrough .the tubes in the drums to the combustion chamber between thedrums and the bottom of the boiler, where the 11am-e, mingling with alarger body of atmospheric air, combines with its oxygen andcausesnearly all the heat there generated to pass through the'boiler tubes andbe absorbed by the water in the boiler, the surplus passing around thesteam pipe, and

serving to superheat the steam therein, to the chimney, while the waterbecomes highly heated in the heater and eireulates freely through it andthe boiler, when the steam is rapidly generated, and witha markedeconomy in fuel and, attendance. Thus it will be seen that the feedWaterv 'is heated in the drum before entering the boiler throughmthepipe d', and that when the feed Water is shut oil", a. circulationthrough the drum and boiler will be established by the arrangement ofthe pipes d and al.

What I claim as my invention, and-desire to secure by Letters Patent,is-

1. A shallow Water-drum or drums, or tubular heater or heaters,interposed between the burner or burners and the boiler, substantiallyas and for the purpose described.

2. The combination of the boiler with the tubular heater, substantiallyas described, and so arranged that a space shall be left between them,for the prpose set forth.

3. The combination of the boiler, tubular drum, and burners,substantially as described, so that the drum shall act as a heater capto the burners, and permit the ame 'to pass to the bottom of theboiler,'as set forth.

In testimony whereof I have hereunto subscribed my name.

v v HERRMAN S. SARONL g Witnesses:

LnANnnn WARREN, OLIVER Woon.

